code: def _detect_charset(self, connection):
      return connection.connection.charset
  
imports: import re
  from .base import BIT
  from .base import MySQLCompiler
  from .base import MySQLDialect
  from .base import MySQLIdentifierPreparer
  from ...None import util
label_desc: Use image node_id 5 for calling the MySQLDialect_mysqlconnector obj's underlying member method code with example usage: obj._detect_charset(connection) and returns: connection